Device and method for improving pH value of continuous electronickelling solution

2015 
The invention provides a device and method for improving pH value of a continuous electronickelling solution. The method for improving the pH value of the continuous electronickelling solution is characterized by comprising the following steps: firstly respectively preparing a NiSO4 plating solution with a certain pH value and a NaOH solution with a certain concentration in an anode liquor circulating slot and a cathode liquor circulating slot, respectively conveying solutions in the two slots into an anode chamber and a cathode chamber, putting sulphur-containing nickel balls into the anode chamber, electrifying two poles of a nickel dissolving slot, stabilizing current, observing voltage change, and detecting pH value of a NiSO4 solution in an anode region at set an interval. The device adopted for adjusting pH value of the electronickelling solution comprises a cathode liquor circulating slot, a thermometer, a stop valve, a sodium hydroxide solution tank, a pump, a purified water tank and a nickel dissolving slot, wherein the nickel dissolving slot comprises an anode liquor circulating slot, a clamping plate, an anion exchange membrane, a cathode chamber, a nickel screen cathode, a nickel plate, an anode chamber and an anode separating plate. The device and method for improving the pH value of the continuous electronickelling solution have the advantages that technique is simple, operation is easy, the pH value of the NiSO4 solution can be improved in short time, the problem of continuous supply of a plating solution is solved, the plating solution is recycled, and energy conservation and environmental protection are realized.
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